Finished copying some slides in the shop and moved everything back upstairs. All of a sudden I started having all sorts of problems. Maybe simple to the more learned but I had never had such problems ever before. Well after much to do I finally nailed it down. Seems most of my batteries have exhausted their life. Well new ones were ordered and problems were solved. Just passing this along.

You'll probably not see much change out of £300. It might be more cost effective to buy a new camera or a decent pre-owned one. MPB Photography or Camera Jungle are good for pre-owned and both give a warranty.